AS 2498.6-1993

1 - AS 2498.6-1993 METHODS OF TESTING RIGID CELLULAR PLASTICS - DETERMINATION OF DIMENSIONAL STABILITY
1 - METHOD
1 - 1 SCOPE
1 - 2 REFERENCED DOCUMENTS
1 - 3 PRINCIPLE
1 - 4 APPARATUS
1 - 4.1 Temperature-controlled or temperature- and humidity-controlled chamber
1 - 4.2 Measuring instruments
1 - 5 TEST SPECIMENS
1 - 5.1 General
2 - 5.2 Dimensions
2 - 5.3 Number
2 - 5.4 Conditioning
2 - 6 PROCEDURE
3 - 7 CALCULATION
3 - 8 TEST REPORT

Specifies test methods for rigid cellular plastics.

This Standard sets out a method for determining the dimensional stability of rigid cellular plastics when subjected to specific conditions of temperature and relative humidity.The method suggests a range of conditions from which one or more of the desired test conditions can be selected.NOTES:1 Additional conditions may be used as agreed upon by the purchaser and supplier.2 The term 'dimensional stability of a rigid cellular plastic' implies the absence of irreversible change in dimensions in each of three directions perpendicular to each other when a test specimen of specified size is exposed to stated conditions for a specified period. In practice, such irreversible changes do occur and are measured by the method described in this Standard.

First published as part of AS K156-1965.
Revised and redesignated in part as AS 2498.6-1981.
Second edition 1993.